My daughter and I tried to do this one a few years back, but we didn't have enough specific information about routes, and were intimidated by the view from the pass, so we didn't try it. The photo you posted with the routes marked in red and green was exactly what we would have needed. Maybe next time!
The data on your page was spot on. The photo was helpful, although in our morning rush, I left it at the campsite! I had to go by memory. However, the route description for the primary route was straightforward and helped me get up to the summit. Nice work.